1. Sizes: 3 7/8’’ to 36’’is available. 2. Application: Suitable for oil, natural gas, geothermal industrial and water well drilling, HDD projects, etc. 3. Cutting structure:Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit. Unique widened crest insert improved the bit aggressivity and penetration rate. 4. Gauge protection structure:The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection. 5. Bearing structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
| Basical Specification | |
| Size of Rock Bit | 9 1/2 inches |
| 241.30 mm | |
| Bit Type | Tungsten Carbide Insert (TCI )Tricone Bit |
| Thread Connection | 6 5/8 API REG PIN |
| IADC Code | IADC537 |
| Bearing Type | Journal Sealed Bearing with Gauge Protection |
| Bearing Seal | Elastomer sealed bearing ( Rubber sealed bearing) / Metal sealed bearing |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Operating Parameters | |
| WOB (Weight On Bit) | 24,268-54,153 lbs |
| 108-241KN | |
| RPM(r/min) | 120~50 |
| Formation | Medium formations,such as medium shale,limestone,medium sandstones,medium formation with harder and abrasive interbeds,etc. |
